Question

1: x+4=28
2: 10x = -5x+60
3: (7x-2+12)+(-5x-3x+2)= -(-x+7)-(6x-4-7)

4: 16-(-2x-4)-(5x-3x+2)=-4x-(-8x+2)​

Answer 1

Respuesta:

(1)

x+4=28

x=28-4

x=24

(2)

10x=-5x+60

10x+5x=60

15x=60

x=60÷15

x=4

(3)

(7x-2+12)+(-5x-3x+2)=-(-x+7)-(6x-4-7)

7x-2+12-5x-3x+2=x-7-6x+4+7

-x+12=-5x+4

-x+5x=4-12

4x=-8

x=-8÷4

x=-4

(4)

16-(-2x-4)-(5x-3x+2)=-4x-(-8x+2)

16+2x+4-5x+3x-2=-4x+8x-2

18=4x-2

18+2=4x

20=4x

x=20÷4

x=5